GB0805577D0 - Acoustic liners - Google Patents

Acoustic liners

Info

Publication number
GB0805577D0
GB0805577D0 GBGB0805577.4A GB0805577A GB0805577D0 GB 0805577 D0 GB0805577 D0 GB 0805577D0 GB 0805577 A GB0805577 A GB 0805577A GB 0805577 D0 GB0805577 D0 GB 0805577D0
Authority
GB
United Kingdom
Prior art keywords
acoustic liners
liners
acoustic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GBGB0805577.4A
Other versions
GB2458679A (en
GB2458679B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB0805577A priority Critical patent/GB2458679B/en
Publication of GB0805577D0 publication Critical patent/GB0805577D0/en
Priority to EP09250102.2A priority patent/EP2105597B1/en
Priority to US12/320,268 priority patent/US7967108B2/en
Publication of GB2458679A publication Critical patent/GB2458679A/en
Application granted granted Critical
Publication of GB2458679B publication Critical patent/GB2458679B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
    • F02C7/045—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for noise suppression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F04D29/526—Details of the casing section radially opposing blade tips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/664—Sound attenuation by means of sound absorbing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F05D2220/326—Application in turbines in gas turbines to drive shrouded, low solidity propeller
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F05D2220/327—Application in turbines in gas turbines to drive shrouded, high solidity propeller
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/18—Two-dimensional patterned
    • F05D2250/182—Two-dimensional patterned crenellated, notched
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/36—Retaining components in desired mutual position by a form fit connection, e.g. by interlocking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • F05D2260/963—Preventing, counteracting or reducing vibration or noise by Helmholtz resonators
GB0805577A 2008-03-28 2008-03-28 Acoustic liners Expired - Fee Related GB2458679B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0805577A GB2458679B (en) 2008-03-28 2008-03-28 Acoustic liners
EP09250102.2A EP2105597B1 (en) 2008-03-28 2009-01-15 Acoustic liner panel for a turbofan engine
US12/320,268 US7967108B2 (en) 2008-03-28 2009-01-22 Acoustic liners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0805577A GB2458679B (en) 2008-03-28 2008-03-28 Acoustic liners

Publications (3)

Publication Number Publication Date
GB0805577D0 true GB0805577D0 (en) 2008-04-30
GB2458679A GB2458679A (en) 2009-09-30
GB2458679B GB2458679B (en) 2010-04-21

Family

ID=39386851

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0805577A Expired - Fee Related GB2458679B (en) 2008-03-28 2008-03-28 Acoustic liners

Country Status (3)

Country Link
US (1) US7967108B2 (en)
EP (1) EP2105597B1 (en)
GB (1) GB2458679B (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2963469B1 (en) 2010-07-27 2012-07-27 Aircelle Sa ACOUSTIC PANEL
FR2971613B1 (en) * 2011-02-10 2013-03-15 Airbus Operations Sas PANEL FOR ACOUSTIC PROCESSING COMPRISING JOINT BETWEEN TWO PARTS AND METHOD OF REPAIRING A PANEL FOR ACOUSTIC TREATMENT
US8695915B1 (en) * 2011-03-11 2014-04-15 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Flap side edge liners for airframe noise reduction
US9227719B2 (en) 2011-03-11 2016-01-05 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Reactive orthotropic lattice diffuser for noise reduction
WO2012145141A1 (en) 2011-04-20 2012-10-26 Dresser-Rand Company Multi-degree of freedom resonator array
US8596413B2 (en) * 2011-07-25 2013-12-03 Dresser-Rand Company Acoustic array of polymer material
FR2984280B1 (en) * 2011-12-15 2013-12-20 Aircelle Sa AIR INTAKE STRUCTURE FOR TURBOREACTOR NACELLE
FR2999650B1 (en) * 2012-12-17 2018-07-13 Safran Aircraft Engines REMOVABLE ACOUSTIC PANELS FOR TURBOREACTOR HOUSING.
US10094242B2 (en) 2014-02-25 2018-10-09 United Technologies Corporation Repair or remanufacture of liner panels for a gas turbine engine
GB201405496D0 (en) 2014-03-27 2014-05-14 Rolls Royce Plc Linear assembly
FR3058672B1 (en) * 2016-11-14 2019-05-10 Safran THRUST REVERSING SHUTTER, AND METHOD OF MANUFACTURING
US10612564B2 (en) 2017-03-07 2020-04-07 Rolls-Royce Corporation Acoustic panel of turbine engine and method of arranging the acoustic panel
US10473030B2 (en) * 2017-03-07 2019-11-12 Rolls-Royce Corporation Acoustic panel of turbine engine
US11059559B2 (en) 2018-03-05 2021-07-13 General Electric Company Acoustic liners with oblique cellular structures
US10823059B2 (en) * 2018-10-03 2020-11-03 General Electric Company Acoustic core assemblies with mechanically joined acoustic core segments, and methods of mechanically joining acoustic core segments
US11434819B2 (en) 2019-03-29 2022-09-06 General Electric Company Acoustic liners with enhanced acoustic absorption and reduced drag characteristics
US11352953B2 (en) 2019-04-05 2022-06-07 Rolls-Royce Corporation Acoustic panel with reinforced lip
US11313324B2 (en) * 2019-04-12 2022-04-26 Rolls-Royce Corporation Systems and methods of acoustic dampening in a gas turbine engine
US11260641B2 (en) 2019-05-10 2022-03-01 American Honda Motor Co., Inc. Apparatus for reticulation of adhesive and methods of use thereof
CN110487533B (en) * 2019-09-17 2021-11-19 中国航发沈阳发动机研究所 Sound lining test piece, assembling method and test structure thereof
US11668236B2 (en) 2020-07-24 2023-06-06 General Electric Company Acoustic liners with low-frequency sound wave attenuating features
US20220099121A1 (en) * 2020-09-25 2022-03-31 Caterpillar Inc. Panel assembly and aftertreatment assembly including panel assembly
US11460048B2 (en) * 2020-12-18 2022-10-04 Rohr, Inc. Attachable acoustic panels and method of making same
US11970992B2 (en) 2021-06-03 2024-04-30 General Electric Company Acoustic cores and tools and methods for forming the same
US11680524B1 (en) 2021-12-16 2023-06-20 Rolls-Royce Corporation Turbine engine acoustic panel with outer flange case mounting
US11946414B2 (en) 2021-12-16 2024-04-02 Rolls-Royce Corporation Manufacture methods and apparatus for turbine engine acoustic panels
US11591927B1 (en) 2021-12-16 2023-02-28 Rolls-Royce Corporation Turbine engine fan track liner with outer flange case mounting
US11965425B2 (en) 2022-05-31 2024-04-23 General Electric Company Airfoil for a turbofan engine

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4161231A (en) * 1973-10-31 1979-07-17 Rolls-Royce Limited Metal cavitated sandwich structures
DE19804718C2 (en) * 1998-02-06 2001-09-13 Eurocopter Deutschland Sound absorbing sandwich wall
US6182787B1 (en) * 1999-01-12 2001-02-06 General Electric Company Rigid sandwich panel acoustic treatment
US6256959B1 (en) * 1999-10-14 2001-07-10 Kjmm, Inc. Building panel with vibration dampening core
JP3584465B2 (en) * 1999-11-11 2004-11-04 日産自動車株式会社 Sound absorbing structure
GB0119608D0 (en) 2001-08-11 2001-10-03 Rolls Royce Plc A guide vane assembly
FR2840647B1 (en) * 2002-06-05 2004-10-29 Airbus France DEVICE FOR CONNECTING TWO TUBULAR PIECES OF AIRCRAFT TURBOREACTOR
FR2844304B1 (en) * 2002-09-10 2004-12-10 Airbus France ACOUSTICALLY RESISTIVE LAYER FOR ACOUSTIC MITIGATION PANEL, PANEL USING SUCH A LAYER
FR2856379B1 (en) * 2003-06-18 2006-11-24 Airbus France AIRCRAFT ENGINE HAVING BLOWER HOUSINGS AND THRUST INVERTERS SEPARATED BY REDUCED GAME
GB2418957B (en) * 2003-10-22 2006-07-05 Rolls Royce Plc A liner for a gas turbine engine casing
GB2407343B (en) * 2003-10-22 2006-04-19 Rolls Royce Plc An acoustic liner for a gas turbine engine casing
US7328771B2 (en) * 2004-07-27 2008-02-12 United Technologies Corporation Zero acoustic splice fan case liner
US7296656B2 (en) * 2005-04-22 2007-11-20 United Technologies Corporation Acoustic mechanical retainer
US7296655B2 (en) * 2005-04-22 2007-11-20 United Technologies Corporation Duct liner acoustic splice
US20080086965A1 (en) * 2006-10-16 2008-04-17 Metz Timothy W Composite structural panel
US20090078820A1 (en) * 2007-09-26 2009-03-26 The Boeing Company Wing-to-body fairing
FR2926614B1 (en) * 2008-01-23 2010-02-12 Aircelle Sa METHOD FOR JOINING ACOUSTIC ALVEOLAR PANELS

Also Published As

Publication number Publication date
EP2105597A2 (en) 2009-09-30
EP2105597A3 (en) 2015-03-04
US20090242321A1 (en) 2009-10-01
GB2458679A (en) 2009-09-30
EP2105597B1 (en) 2016-03-23
GB2458679B (en) 2010-04-21
US7967108B2 (en) 2011-06-28

Similar Documents

Publication Publication Date Title
GB2458679B (en) Acoustic liners
EP2307627A4 (en) Acoustic composite
TWI561708B (en) Acoustical panels
GB2461448B (en) Transducer
EP2148524A4 (en) Electroacoustic transducer
EP2262664A4 (en) Acoustic baffle assembly
EP2355541A4 (en) Microphone unit
EP2206359A4 (en) Acoustic transducer
SI2248360T1 (en) Vibration tone differentiation
EP2242285A4 (en) Microphone unit
EP2384019A4 (en) Microphone unit
GB0811015D0 (en) Improved acoustic device
EP2259604A4 (en) Speaker
EP2208357A4 (en) Acoustic system
AU321951S (en) Speaker
EP2346268A4 (en) Acoustic apparatus
GB0900745D0 (en) Acoustic oscillator
EP2252075A4 (en) Microphone unit
GB2458810B (en) Acoustic reflector
GB0723526D0 (en) Acoustic transducer
HK1161012A1 (en) Acoustic pass through for handsets
GB2470849B (en) Transducer
GB0815013D0 (en) Transducers
GB0807951D0 (en) Sound wall
GB0801079D0 (en) Transducer

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20220328